User:Jon3883/sandbox

$$ \frac {48 - \sqrt{8x + 4}} {7} = 6 $$

$$ 5 - 2 (8 - 2) - 6^2 \div (7-3) + 2 \times 8 = $$

$$ 16 \div 2 + 8 + 4 \times 15 = $$

$$ 7 \times (5 + 5 \times 7) - 10 = $$

$$ (11-3)^2 + (14-18 \div 2) = $$

$$ \begin{matrix} x + y = 7 \\ 2x-y=2 \end{matrix} $$

$$ \begin{matrix} \quad x + y + z = 10 \\ ^- x + y + z = 0 \end{matrix} $$

$$ \begin{matrix} \begin{align} x + 3y + 6z & = 126 \\ x - 2y - 7z & = -128 \\ 5x - y + z & = -19 \end{align} \end{matrix} $$

$$ \begin{matrix} \text{If you buy x donuts for your friends and they cost y cents each,} \\ \text{but you give the teller z dollars, how much change do you get?} \\ \end{matrix} $$

$$ \begin{matrix} \begin{align} & \text{If you buy } x \text{ donuts for your friends and they cost } y \text { cents each,} \\ & \text{but you give the teller } z \text { dollars, how much change do you get?} \\ & \text{(A) } xy - z \\ & \text{(B) } z - xy \\ & \text{(C) } z - \frac {xy} {100} \\ & \text{(D) } \frac {z - xy} {100} \\ & \text{(E) } \frac {z} {100} - xy \end{align} \end{matrix} $$

$$ z - \frac {xy} {100} $$

$$ \begin{matrix} \begin{align} & \text{If 10 percent of } x \text{ equals 25 percent of } y \text {, which of the} \\ & \text{following expresses } y \text { in terms of } x \text{?}\\ & \text{(A) } y = 2.5\% \text{ of } x \\ & \text{(B) } y = 15\% \text{ of } x \\ & \text{(C) } y = 35\% \text{ of } x \\ & \text{(D) } y = 40\% \text{ of } x \\ & \text{(E) } y = 250\% \text{ of } x \\ \end{align} \end{matrix} $$

$$ \begin{matrix} \begin{align} & \text{1. Find the } x \text{- and } y \text {-intercepts of } y = \frac {(x-2)^2} {4}-3\\ \\ & \text{2. Find the } x \text{- and } y \text {-intercepts of } y = 8 \sin \left ( \frac {x} {3} \right ) -2\\ \\ & \text{3. Find the point of intersection between } y = x \text{ and } y = x^3 - 7\\ \\ & \text{4. Using your calculator's table function, quickly find the value for the} \\ & \quad \ \text {function } y = x^3 - 7 \text{ when } x = 27 \\ \\ & \text{5. Adjust your window's dimensions so you can more clearly view the} \\ & \quad \ \text {graph of } y = (x-10)^3 \text { in the first quadrant} \\ \\ & \text{6. } \sqrt[7]{2187} = \\ \\ & \text{7. If } \frac {5^{998} + 5^{999}} {6} = 5^x \text{, what is } x \text { ?}\\ \\ \end{align} \end{matrix} $$

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 * -7| =

$$ \begin{matrix} \begin{align} & \text{Name the following symbols and give their meaning:} \\ \perp \\ \\ \parallel \\ \\ \plusmn \end{align} \end{matrix} $$

$$ \begin{matrix} \begin{align} & \text{Answer the following with odd or even} \\ & \text{Odd} \times \text {Odd } = \\ & \text{Odd} \times \text {Even } = \\ & \text{Even} \times \text {Even } = \\ & \text{Even} \plusmn \text {Odd } = \\ & \text{Even} \plusmn \text {Even } = \\ & \text{Odd} \plusmn \text {Odd } = \\ & \text{Zero is } \\ \end{align} \end{matrix} $$

$$ \begin{matrix} \begin{align} & \text{Answer the following with positive or negative} \\ & \text{Negative} \times \text {Negative } = \\ & \text{Negative} \times \text {Positive} = \\ & \text{Zero is } \\ \end{align} \end{matrix} $$

$$ f(x) = x \text{ and } g(x) = x^2 \text{. For what values of } x \text { is } f(x) > g(x) \text {?} $$

$$ f(x) = x \text{ and } g(x) = x^3 \text{. For what values of } x \text { is } f(x) > g(x) \text {?} $$

$$ \begin{matrix} \begin{align} & \text {If } x \text { and } y \text { are inversely proportional and } x = 24 \text { when } y = 5 \text {,} \\ & \text {what is } x \text { when } y \text { is } 12 \text {?} \end{align} \end{matrix} $$

$$ \begin{matrix} \begin{align} & \text {If } x \text { and } y \text { are directly proportional and } x = 6 \text { when } y = 14 \text {,} \\ & \text {what is } x \text { when } y \text { is } 35 \text {?} \end{align} \end{matrix} $$

$$ \begin{matrix} \begin{align} & \text {If } \sqrt{x} \text { and } y^2 \text { are directly proportional and } x = 1 \text { when } y = 4 \text {,} \\ & \text {what is } x \text { when } y \text { is } 4\sqrt{2} \text {?} \end{align} \end{matrix} $$

$$ \begin{matrix} \begin{align} & \text {If } x^{-1} \text { and } y^2 \text { are inversely proportional and } x = \frac {1} {4} \text { when } y = 2 \text {,} \\ & \text {what is } x \text { when } y \text { is } 4 \text {?} \end{align} \end{matrix} $$

$$ \begin{matrix} \begin{align} & \text {If } (x - y)^2 = 64 \text { and } xy = 20 \text {, then what is } x^2 + y^2 \text {?} \end{align} \end{matrix} $$

$$ \begin{matrix} \begin{align} & \text {If } m^2 - n^2 = 20 \text { and } m + n = 10 \text {, then what is  } m - n \text {?} \end{align} \end{matrix} $$

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